American Association of Orthodontists — Is mewing bad for you?

What the study found

The American Association of Orthodontists (AAO), the U.S. professional body for orthodontists, states that there is no scientific support for the jawline claims made about mewing. It explains that facial structure comes from a complex interplay of genetics, bone growth, and muscle development, so simply changing tongue placement is not enough to reshape the jawline. The AAO further warns that the practice can instead cause tooth misalignment, malocclusion (over- or underbites) and temporomandibular joint (TMJ) pain. ^[1]

There's no current research that suggests the technique provides any benefit to your jawline or oral health

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Why it matters here

Mewing is widely promoted in manosphere and "looksmaxxing" spaces as a free way to sharpen the jaw through tongue posture. This statement from the relevant professional body directly addresses that claim, finding no evidence of benefit and noting potential dental harm. It is cited here to weigh the question of whether mewing actually changes your jawline, grounding that discussion in the position of orthodontic specialists rather than online testimony.